MESON Chess Problem Database
Problem Display
PID: 164313 (6Q1/1K6/7N/1p2pP2/4k3/2P1r1pN/2P3P1/2B5 w - - 0 1)
Taffs, Anthony John
The Observer, 1926
(First published on Sun Jun 6 1926)
#2
9 + 5
| 15239 | Valois Notebooks | 2017 |
SOLUTION
- SOUND
- Sets
- 1...Re1
- 2.Sg5#
- 1...Re2
- 2.Sg5#
- 1...Rd3
- 2.Sg5#
- 1...Rf3
- 2.Sg5#
- 1...b4
- 2.Qc4#
- 1...Re1
- Tries
- 1.Ka6?
- threat
- 2.Qa8#
- 1...Rd3
- 2.Sg5#
- 1...Rxc3!
- threat
- 1.Kb6?
- threat
- 2.Qa8#
- 1...Rd3
- 2.Sg5#
- 1...Rxc3!
- threat
- 1.Kc6?
- threat
- 2.Qd5#
- 2.Qg4#
- 1...Rd3
- 2.Sg5#
- 2.Qg4#
- 1...Rf3
- 2.Sg5#
- 2.Qd5#
- 1...Rxc3+!
- threat
- 1.Ka7?
- threat
- 2.Qa8#
- 1...Rd3
- 2.Sg5#
- 1...Rxc3!
- threat
- 1.Kc7?
- threat
- 2.Qa8#
- 1...Rd3
- 2.Sg5#
- 1...Rxc3+!
- threat
- 1.Ka8?
- 1...Re1
- 2.Sg5#
- 1...Re2
- 2.Sg5#
- 1...Rd3
- 2.Sg5#
- 1...Rf3
- 2.Sg5#
- 1...b4
- 2.Qc4#
- 1...Rxc3!
- 1...Re1
- 1.Kb8?
- 1...Re1
- 2.Sg5#
- 1...Re2
- 2.Sg5#
- 1...Rd3
- 2.Sg5#
- 1...Rf3
- 2.Sg5#
- 1...b4
- 2.Qc4#
- 1...Rxc3!
- 1...Re1
- 1.Kc8?
- 1...Re1
- 2.Sg5#
- 1...Re2
- 2.Sg5#
- 1...Rd3
- 2.Sg5#
- 1...Rf3
- 2.Sg5#
- 1...b4
- 2.Qc4#
- 1...Rxc3+!
- 1...Re1
- 1.Sf2+?
- 1...Kf4
- 2.Qg4#
- 1...gxf2!
- 1...Kf4
- 1.Bd2?
- 1...Re1
- 2.Sg5#
- 1...Re2
- 2.Sg5#
- 1...Rd3
- 2.Sg5#
- 1...Rf3
- 2.Sg5#
- 1...b4
- 2.Qc4#
- 1...Rxc3!
- 1...Re1
- 1.Qa2?
- 1...Re1
- 2.Sg5#
- 1...Re2
- 2.Sg5#
- 1...Rd3
- 2.Sg5#
- 1...Rf3
- 2.Sg5#
- 1...b4
- 2.Qc4#
- 1...Rxc3!
- 1...Re1
- 1.Qb3?
- 1...Re1
- 2.Sg5#
- 1...Re2
- 2.Sg5#
- 1...Rd3
- 2.Sg5#
- 1...Rf3
- 2.Sg5#
- 1...b4
- 2.Qc4#
- 1...Rxc3!
- 1...Re1
- 1.Qe6?
- threat
- 2.Qc6#
- 1...Rd3
- 2.Sg5#
- 1...Rxc3!
- threat
- 1.Qf7?
- 1...Re1
- 2.Sg5#
- 1...Re2
- 2.Sg5#
- 1...Rd3
- 2.Sg5#
- 1...Rf3
- 2.Sg5#
- 1...b4
- 2.Qc4#
- 1...Rxc3!
- 1...Re1
- 1.Qd8?
- 1...Rxc3
- 2.Sg5#
- 1...Rd3
- 2.Sg5#
- 2.Qxd3#
- 2.cxd3#
- 1...Re1
- 2.Sg5#
- 2.Qd3#
- 1...Re2
- 2.Sg5#
- 2.Qd3#
- 1...Rf3
- 2.Sg5#
- 1...b4!
- 1...Rxc3
- 1.c4?
- threat
- 2.Qd5#
- 2.Qg4#
- 1...bxc4
- 2.Qxc4#
- 1...Rd3
- 2.Qg4#
- 1...Rf3
- 2.Qd5#
- 1...Kd4!
- threat
- 1.f6?
- 1...Rd3
- 2.Sg5#
- 1...Re1
- 2.Sg5#
- 1...Re2
- 2.Sg5#
- 1...Rf3
- 2.Sg5#
- 1...b4
- 2.Qc4#
- 1...Rxc3!
- 1...Rd3
- 1.Ka6?
- Keys
- 1.Sf4!
- 1...Kxf4
- 2.Qg4#
- 1...Rxc3
- 2.Qd5#
- 1...exf4
- 2.Qe6#
- 1...Re1
- 2.Qd5#
- 1...Re2
- 2.Qd5#
- 1...Rd3
- 2.cxd3#
- 1...Rf3
- 2.Qd5#
- 1...b4
- 2.Qc4#
- 1...Kxf4
- 1.Sf4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 4
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(a);::S(E)
- P(d);N_GUARD::QAR2(I)
- Tries
- Try
- K(H);S_FLIGHT
- Threat
- QAB(I)
- Vars
- R(a);::S(E)
- Refutation
- R(a);XP(D)
- Try
- K(H);P-FLIGHT
- Threat
- QAB(I)
- Vars
- R(a);::S(E)
- Refutation
- R(a);XP(D)
- Try
- K(H);S_FLIGHT
- Threat
- DUALS(2)
- Refutation
- R(a);CHECK,XP(D)
- Try
- K(H);P-FLIGHT
- Threat
- QAB(I)
- Vars
- R(a);::S(E)
- Refutation
- R(a);XP(D)
- Try
- K(H);P-FLIGHT
- Threat
- QAB(I)
- Vars
- R(a);::S(E)
- Refutation
- R(a);CHECK,XP(D)
- Try
- K(H);S_FLIGHT
- Vars
- R(a);::S(E)
- P(d);N_GUARD::QAR2(I)
- Refutation
- R(a);XP(D)
- Try
- K(H);P-FLIGHT
- Vars
- R(a);::S(E)
- P(d);N_GUARD::QAR2(I)
- Refutation
- R(a);XP(D)
- Try
- K(H);S_FLIGHT
- Vars
- R(a);::S(E)
- P(d);N_GUARD::QAR2(I)
- Refutation
- R(a);CHECK,XP(D)
- Try
- S(E);CHECK
- Vars
- K(c);P-FLIGHT,P_SPINR(a)::QAR1(I)
- Refutation
- P(b);XS(E)
- Try
- B(A);
- Vars
- R(a);::S(E)
- P(d);N_GUARD::QAR2(I)
- Refutation
- R(a);XP(D)
- Try
- Q(I);
- Vars
- R(a);::S(E)
- P(d);N_GUARD::QAR2(I)
- Refutation
- R(a);XP(D)
- Try
- Q(I);
- Vars
- R(a);::S(E)
- P(d);N_GUARD::QAR2(I)
- Refutation
- R(a);XP(D)
- Try
- Q(I);P_PINP(e)
- Threat
- QAB(I)
- Vars
- R(a);::S(E)
- Refutation
- R(a);XP(D)
- Try
- Q(I);
- Vars
- R(a);::S(E)
- P(d);N_GUARD::QAR2(I)
- Refutation
- R(a);XP(D)
- Try
- Q(I);
- Vars
- R(a);XP(D)::S(E)
- R(a);::S(E)
- Refutation
- P(d);
- Try
- P(D);
- Threat
- DUALS(2)
- Vars
- P(d);OGATE,XP(D)::QAR2(I),XP(d)
- R(a);::QAR2(I)
- R(a);::QAB1(I)
- Refutation
- K(c);P-FLIGHT
- Try
- P(F);
- Vars
- R(a);::S(E)
- P(d);N_GUARD::QAR2(I)
- Refutation
- R(a);XP(D)
- Try
- Actual
- S(E);
- Vars
- K(c);OGATEB,P-FLIGHT,P_SPINR(a),XS(E)::QAR1(I)
- R(a);XP(D)::QAB1(I)
- P(e);OGATEB,SBLOCK,XS(E)::QAR2(I)
- R(a);::QAB1(I)
- R(a);OGATE::P(B),XR(a)
- P(d);N_GUARD::QAR2(I)
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